| 张晓慧,闫丰文.化学通报,2015,78(11):1045-1048. |
| 不同次级结构的硫酸钡多晶体制备研究 |
| Preparation of barium sulfate polycrystal with different secondary structures from barium peroxide matrix |
| 投稿时间：2015-04-16 修订日期：2015-06-01 |
| DOI： |
| 中文关键词: 硫酸钡,晶体生长,聚合物添加剂 |
| 英文关键词:Barium Sulfate, Crystal Growth, Polymer Additives |
| 基金项目: |
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| 中文摘要: |
| 以过氧化钡晶体为母体钡源,利用溶液中碱性条件下过氧化氢电离控制制过氧化钡分解速度,结合过量SO42-制备了具有过氧化钡宏观形貌的硫酸钡多晶体,该多晶体由条形结构单元组成；进一步通过不同聚合物添加剂调节次级结构单元的形貌,在溶液中引入聚苯乙烯磺酸钠制备了由球形次级结构单元组成的硫酸钡多晶体,而在不同浓度的聚丙烯酸添加剂作用下,可制得由纳米颗粒和纳米棒状结构单元组成的硫酸钡多晶体。制备的多晶体材料为具有母体材料统一宏观形貌的大颗粒,其次级结构可通过聚合物添加剂调控,为合成具有特定形貌的功能晶体材料提供了一个新的途径。 |
| 英文摘要: |
| Morphological control of crystalline materials often plays a critical role in governing their properties. Here, microsoluble inorganic chemical BaO2 is utilized as the matrix to prepare polycrystal BaSO4 with corresponding macroscopic morphology. And the products with different secondary structures were prepared in the presence of different polymer additives such as Poly (styrene sulfonic acid) sodium and Poly (acrylic acid) , and this may open a new general route for the synthesis of minerals with special macroscopic morphology. |
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